Series Land Rovers have always had petrol engines as an option but from 1957 diesel engines were also offered.
Diesel is pulled from the tank by a mechanical lift pump and passed through a series of filters to the injector/distributor pump. From here a controlled amount of diesel is passed to the fuel injectors in the cylinders, depending upon what load the engine is experiencing at that moment in time. The diesel enters the cylinders at very high pressure and as a fine spray.
Petrol is pulled from the tank by an electrical fuel pump in Series I models and by a mechanical pump in Series II, IIA and III models. An electric pump(mounted on the dash) was an option though in the 2286cc engine. The six cylinder engine, introduced in 1967, has an electrical fuel pump.
Carburettors started as Solex and then changed to Zenith, but the 6-cylinder engine uses Stromberg or SU carburettors.
Coarse fuel filters are situated in the tank uptake pipe and fuel pump. A sediment bowl is also often an integral part of the mechanical fuel pump. Many Series Land Rover owners these days fit an aftermarket inline paper fuel filter.
The February 2013 UK homepage focuses on the mechanical fuel pump. It discusses its operation, possible problems and basic maintenance.
The March 2013 UK homepage describes where and how to check for possible fuel leaks in the fuel system of a Series Land Rover. Suggestions for temporary and permanent solutions are given where appropriate for the carburettor, engine and other parts of the fuel system.
Archived Fuel System Articles From Foreign Series123.com Homepages
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The November 2006 USA homepage gives a basic description of the diesel fuel system as related to the Series Land Rovers. It also includes fault diagnosis for problems such as difficult starting, poor idling, stalling, poor acceleration, erratic running and being smokey.
The February 2009 USA homepage suggests some ways to test the efficiency of the mechanical fuel pump fitted to Series II and III Land Rovers. It also suggests some helpful points when using a repair kit for the pump.
The February 2013 USA homepage describes possible problems and possible solutions that may be encountered with the electric fuel pump, as fitted to Land Rover Series I engines and the 2.6litre engine.
The May 2013 USA homepage gives advice on what to do if the wrong fuel is added to the fuel tank. Adding gas to diesel and diesel to gas are both covered.
The January 2009 Australian homepage briefly describes some differences between the fuel tanks of SWB and LWB Series Land Rovers.
The September 2011 Australian homepage looks at petrol and diesel leaks, where they might occur from and how they may be temporarily repaired.
The March 2013 Australian homepage discusses starting problems related to Series Land Rover petrol engines. Problems are categorised by fuel/air mixture, carburettor, overheating and fuel supply.
The April 2013 Australian homepage discusses possible causes for a Land rover diesel engine to show an engine idling problem. A step-wise series of checks are given to discover the cause of the problem.
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